MA47232A - Intégration rétrocompatible d'un transposeur harmonique pour une reconstruction haute fréquence de signaux audio - Google Patents

Intégration rétrocompatible d'un transposeur harmonique pour une reconstruction haute fréquence de signaux audio

Info

Publication number
MA47232A
MA47232A MA047232A MA47232A MA47232A MA 47232 A MA47232 A MA 47232A MA 047232 A MA047232 A MA 047232A MA 47232 A MA47232 A MA 47232A MA 47232 A MA47232 A MA 47232A
Authority
MA
Morocco
Prior art keywords
retrocompatible
integration
high frequency
audio signals
frequency reconstruction
Prior art date
Application number
MA047232A
Other languages
English (en)
French (fr)
Inventor
Per Ekstrand
Heiko Purnhagen
Lars Villemoes
Original Assignee
Dolby Int Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Publication of MA47232A publication Critical patent/MA47232A/fr

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Mathematical Physics (AREA)
  • Data Mining & Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Detergent Compositions (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Peptides Or Proteins (AREA)
  • Materials For Photolithography (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Stereophonic System (AREA)
  • Lubricants (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Seasonings (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
MA047232A 2017-03-23 2018-03-19 Intégration rétrocompatible d'un transposeur harmonique pour une reconstruction haute fréquence de signaux audio MA47232A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201762475619P 2017-03-23 2017-03-23

Publications (1)

Publication Number Publication Date
MA47232A true MA47232A (fr) 2019-10-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MA047232A MA47232A (fr) 2017-03-23 2018-03-19 Intégration rétrocompatible d'un transposeur harmonique pour une reconstruction haute fréquence de signaux audio

Country Status (29)

Country Link
US (10) US10818306B2 (ja)
EP (6) EP4528728B1 (ja)
JP (7) JP6665354B2 (ja)
KR (8) KR102702697B1 (ja)
CN (8) CN112863527B (ja)
AR (6) AR111047A1 (ja)
AU (8) AU2018237070B2 (ja)
BR (2) BR112019014125B1 (ja)
CA (5) CA3133923A1 (ja)
CL (1) CL2019001981A1 (ja)
CO (1) CO2019008431A2 (ja)
EA (3) EA202191156A1 (ja)
EC (1) ECSP19054232A (ja)
ES (4) ES3048630T3 (ja)
GE (1) GEP20217226B (ja)
HU (2) HUE070839T2 (ja)
IL (8) IL317234A (ja)
MA (1) MA47232A (ja)
MX (7) MX372634B (ja)
NZ (2) NZ759800A (ja)
PE (4) PE20251019A1 (ja)
PH (1) PH12019501658A1 (ja)
PL (4) PL4528728T3 (ja)
SA (2) SA519402434B1 (ja)
SG (1) SG11201906370TA (ja)
TW (7) TWI901542B (ja)
UA (3) UA126401C2 (ja)
WO (1) WO2018175347A1 (ja)
ZA (8) ZA201904559B (ja)

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IL305626B2 (en) 2024-06-01
IL296961A (en) 2022-12-01
WO2018175347A1 (en) 2018-09-27
EA036090B1 (ru) 2020-09-25
EP4528729B1 (en) 2025-09-10
NZ794700A (en) 2024-10-25
KR20240008408A (ko) 2024-01-18
IL272690B (en) 2022-11-01
JP2023181209A (ja) 2023-12-21
EP3559821A4 (en) 2020-10-28
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AU2024227419B2 (en) 2026-01-08
TW202546815A (zh) 2025-12-01
EP4528728C0 (en) 2025-09-03
JP2022003420A (ja) 2022-01-11
EP4528729A2 (en) 2025-03-26
AU2024227419A1 (en) 2024-11-07
EP4528728B1 (en) 2025-09-03
NZ759800A (en) 2021-07-30
KR20240135064A (ko) 2024-09-10
TW202546814A (zh) 2025-12-01
CN118380002A (zh) 2024-07-23
IL267666B (en) 2020-04-30
AR120465A2 (es) 2022-02-16
MX2022015199A (es) 2023-01-05
US11676616B2 (en) 2023-06-13
US20230051379A1 (en) 2023-02-16
NZ794714A (en) 2024-07-26
IL272690B2 (en) 2023-03-01
CN112863528A (zh) 2021-05-28
EP4661002A3 (en) 2026-02-18
EA038268B1 (ru) 2021-08-02
AU2026200874A1 (en) 2026-02-26
BR112019014125A2 (pt) 2019-12-17
EP4550324C0 (en) 2025-10-29
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JP2020503566A (ja) 2020-01-30
PL4550324T3 (pl) 2026-02-23
EA202091313A1 (ru) 2020-09-30
PE20251019A1 (es) 2025-04-08
MX2019008349A (es) 2019-09-16
IL313477B2 (en) 2025-07-01
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IL310208B1 (en) 2024-07-01
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US11605391B2 (en) 2023-03-14
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US20230377589A1 (en) 2023-11-23
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CN118898997A (zh) 2024-11-05
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